CN112859456B - Display panel and method for manufacturing the same - Google Patents
Display panel and method for manufacturing the same Download PDFInfo
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- CN112859456B CN112859456B CN202110298443.3A CN202110298443A CN112859456B CN 112859456 B CN112859456 B CN 112859456B CN 202110298443 A CN202110298443 A CN 202110298443A CN 112859456 B CN112859456 B CN 112859456B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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Abstract
The embodiment of the disclosure provides a display panel and a manufacturing method thereof. The preparation method of the display panel comprises the following steps: providing a first substrate and a second substrate, wherein liquid crystal is dripped on the first substrate, and frame sealing glue is coated on the second substrate; the frame sealing glue comprises a main glue body and a virtual glue body; aligning and attaching the first substrate and the second substrate in a vacuum box aligning machine to form a box body; taking the box body out of the vacuum box aligning machine, wherein the main colloid and the virtual colloid in the box body are both colloid which is not subjected to pre-curing treatment; keeping the posture of the box body, and simultaneously carrying out ultraviolet curing treatment on the main colloid and the virtual colloid. This openly does not carry out the precuring of virtual colloid of putting when to the box and handles, need not carry out 180 upsets behind the box, eliminates the problem that main colloid and virtual colloid of putting are different in deformation under the atmospheric pressure effect from the root, has guaranteed that the liquid crystal box thickness in each region of display panel periphery is the same basically, has avoided the phenomenon such as display panel periphery yellow.
Description
Technical Field
The present disclosure relates to, but not limited to, the field of display technologies, and in particular, to a display panel, a method for manufacturing the same, and a display device including the display panel.
Background
Liquid Crystal Display (LCD) devices have been rapidly developed because of their small size, low power consumption, and no radiation. Currently, a liquid crystal display panel includes an Array (Array) substrate, a Color Filter (CF) substrate, and a Liquid Crystal (LC) layer filled between the Array substrate and the CF substrate. In a Cell, generally, a Sealant (Sealant) is coated on one substrate, a liquid crystal is dropped on the other substrate, the array substrate and the color filter substrate are aligned and bonded under a vacuum condition, and the Sealant is cured by a cross-linking polymerization reaction through uv curing and/or thermal curing, so as to seal the liquid crystal and fix the array substrate and the color filter substrate.
The inventor of the application finds that the existing display panel has the defects of yellowing around and the like, the product quality is influenced, and the product competitiveness is reduced.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The present disclosure is directed to a display panel and a method for manufacturing the same, so as to overcome the defect of yellowing of the periphery of the conventional display panel.
In order to solve the above technical problem, an exemplary embodiment of the present disclosure provides a method for manufacturing a display panel, including:
providing a first substrate and a second substrate, wherein liquid crystal is dripped on the first substrate, and frame sealing glue is coated on the second substrate; the frame sealing glue comprises a main glue body and a virtual glue body;
aligning and attaching the first substrate and the second substrate in a vacuum box aligning machine to form a box body; taking the box body out of the vacuum box aligning machine, wherein the main colloid and the virtual colloid in the box body are not subjected to pre-curing treatment;
and maintaining the posture of the box body, and simultaneously carrying out ultraviolet curing treatment on the main colloid and the virtual colloid.
In an exemplary embodiment, the first substrate includes an array substrate, and the second substrate includes a color filter substrate.
In an exemplary embodiment, the first substrate includes a color filter substrate, and the second substrate includes an array substrate.
In an exemplary embodiment, the dummy colloids are disposed at the periphery of the main colloids.
In an exemplary embodiment, aligning and attaching the first substrate and the second substrate in a vacuum cassette aligning machine to form a cassette body includes:
in a vacuum box aligning machine, an upper base station adsorbs the first substrate, one side of the first substrate on which liquid crystal is dripped faces downwards, a lower base station adsorbs the second substrate, and one side of the second substrate coated with frame sealing glue faces upwards;
the upper base station drives the first substrate or the lower base station drives the second substrate to align, and the end part of the frame sealing glue on the second substrate is attached to the first substrate to form a box body of the first substrate above the second substrate.
In an exemplary embodiment, before aligning and attaching the first substrate and the second substrate in a vacuum cassette aligning machine to form a cassette, the method further includes: and turning the first substrate 180 degrees to enable the side of the first substrate on which the liquid crystal is dripped to face downwards.
In an exemplary embodiment, the ultraviolet curing process is performed on the primary colloid and the dummy colloid while maintaining the posture of the cartridge, and includes:
keeping the posture of the box body of the first substrate above the second substrate, and sending the box body into ultraviolet curing equipment;
in the ultraviolet curing equipment, ultraviolet light penetrates through the first substrate and simultaneously carries out ultraviolet curing treatment on the main colloid and the virtual colloid;
and taking the box body out of the ultraviolet curing equipment.
In an exemplary embodiment, after the ultraviolet curing treatment is performed on the primary colloid and the dummy colloid, the method further includes: and in the thermocuring equipment, thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time.
In an exemplary embodiment, the thermally curing the primary colloid and the dummy colloid simultaneously in the thermal curing apparatus includes:
feeding the box body into a thermosetting device;
in a thermocuring device, thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time;
and taking the box body out of the heat curing device.
The embodiment of the disclosure also provides a display panel prepared by the preparation method.
The embodiment of the disclosure provides a display panel and a manufacturing method thereof, wherein pre-curing treatment of a virtual colloid is not performed when a box is set, 180-degree overturning is not required after the box is set, ultraviolet curing treatment is performed on a main colloid and the virtual colloid in ultraviolet curing equipment, the problem that the main colloid and the virtual colloid are deformed differently under the action of atmospheric pressure is radically eliminated, the accuracy of pixel alignment in the display panel is ensured, the thicknesses of liquid crystal boxes in all areas around the display panel are basically the same, the phenomena of yellowing and the like of the periphery of the display panel are avoided, and the defects of yellowing and the like of the periphery of the existing display panel are effectively overcome.
Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
FIG. 1 is a schematic diagram of a pre-cured virtually-placed colloid of the prior art;
FIG. 2 is a schematic diagram of deformation of a virtual colloid;
FIG. 3 is a schematic diagram of deformation of a main colloid and a dummy colloid;
fig. 4 is a flowchart of a method of manufacturing a display panel according to an exemplary embodiment of the present disclosure;
fig. 5 is a schematic diagram of a color film substrate coated with a sealant according to an exemplary embodiment of the disclosure;
FIG. 6 is a schematic view of alignment fitting according to an exemplary embodiment of the present disclosure;
FIG. 7 is a schematic view of a rear cartridge body of an exemplary embodiment of the present disclosure;
FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is an enlarged view of area B of FIG. 7;
fig. 10 is a schematic view of a cartridge for uv curing according to an exemplary embodiment of the present disclosure.
Description of reference numerals:
1-an array substrate; 2-color film substrate; 10-primary colloid;
20-virtual colloid; 21-solidified virtual colloid; 22-uncured virtual placement colloid;
30, mounting a base; 40, a lower base station; 100-a box body;
200-a light source carrier plate; 210 — point light source.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Note that the embodiments may be implemented in a plurality of different forms. Those skilled in the art can readily appreciate the fact that the forms and details may be varied into a variety of forms without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure should not be construed as being limited to the contents described in the following embodiments. The embodiments and features of the embodiments in the present disclosure may be arbitrarily combined with each other without conflict.
In the drawings, the size of each component, the thickness of layers, or regions may be exaggerated for clarity. Therefore, one aspect of the present disclosure is not necessarily limited to the dimensions, and the shapes and sizes of the respective components in the drawings do not reflect a true scale. Further, the drawings schematically show ideal examples, and one embodiment of the present disclosure is not limited to the shapes, numerical values, and the like shown in the drawings.
The ordinal numbers such as "first", "second", "third", and the like in the present specification are provided for avoiding confusion among the constituent elements, and are not limited in number.
In this specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships are used to explain positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. The positional relationship of the components is changed as appropriate in accordance with the direction in which each component is described. Therefore, the words described in the specification are not limited to the words described in the specification, and may be replaced as appropriate.
In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The specific meaning of the above terms in the present disclosure can be understood in a specific case to those of ordinary skill in the art.
In this specification, a transistor refers to an element including at least three terminals, i.e., a gate electrode, a drain electrode, and a source electrode. The transistor has a channel region between a drain electrode (drain electrode terminal, drain region, or drain electrode) and a source electrode (source electrode terminal, source region, or source electrode), and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, a channel region refers to a region where current mainly flows.
In this specification, the first electrode may be a drain electrode and the second electrode may be a source electrode, or the first electrode may be a source electrode and the second electrode may be a drain electrode. In the case of using transistors of opposite polarities, or in the case of changing the direction of current flow during circuit operation, the functions of the "source electrode" and the "drain electrode" may be interchanged. Therefore, in this specification, "source electrode" and "drain electrode" may be exchanged with each other.
In this specification, "electrically connected" includes a case where constituent elements are connected together by an element having some kind of electrical action. The "element having a certain electric function" is not particularly limited as long as it can transmit and receive an electric signal between connected components. Examples of the "element having some kind of electric function" include not only an electrode and a wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, other elements having various functions, and the like.
In the present specification, "parallel" means a state in which an angle formed by two straight lines is-10 ° or more and 10 ° or less, and therefore, includes a state in which the angle is-5 ° or more and 5 ° or less. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and therefore includes a state in which the angle is 85 ° or more and 95 ° or less.
In the present specification, "film" and "layer" may be interchanged with each other. For example, the "conductive layer" may be sometimes replaced with a "conductive film". Similarly, the "insulating film" may be replaced with an "insulating layer".
"about" in this disclosure means that the limits are not strictly defined, and that the numerical values are within the tolerances allowed for the process and measurement.
The inventor of the application finds that the existing display panel has the defects of yellowing around and the like, and is caused to the box process to a certain extent. Currently, the existing box aligning process includes: (1) Liquid crystal is dripped on the array substrate, and frame sealing glue is coated on the color film substrate. The frame sealing glue comprises a Main glue body (Main Sealant) and a virtual Sealant (Dummy Sealant), wherein the virtual Sealant is arranged on the periphery of the Main glue body. (2) In a Vacuum Aligner System (VAS for short), an upper base station for adsorbing a color film substrate and a lower base station for adsorbing an array substrate are aligned and relatively close to each other, the color film substrate and the array substrate are attached to form a box body, and an ultraviolet light source is adopted to irradiate a virtual colloid to complete the pre-curing of the virtual colloid. (3) And taking the box body out of the vacuum box aligning machine, overturning the box body by a mechanical arm in transmission, and then completing the curing of the main colloid through processes of ultraviolet curing, thermocuring and the like. FIG. 1 is a schematic diagram of a pre-cured dummy pattern in a conventional process. The pre-cured virtual colloid in the vacuum box aligning machine can ensure that the color film substrate and the array substrate are firmly attached, and the color film substrate and the array substrate are not easy to slide relatively in the subsequent transmission and overturning of the mechanical arm of the box body. As shown in fig. 1, the ultraviolet light source of the pre-cured virtual placement colloid is formed by disposing a plurality of ultraviolet light emitting diode (UV LED) point light sources 210 on a light source carrier 200 at equal intervals, the light source carrier 200 may be rectangular, and a plurality of (for example, 15) point light sources 210 are disposed on each side edge of the light source carrier 200. For a large-sized display panel, since the diameter of the point light sources 210 is about 3mm to 5mm and the distance between adjacent point light sources 210 is large, each point light source 210 can only irradiate a part of the virtual colloid. The irradiated virtual colloid has increased hardness after curing reaction and is not easy to be compressed, while the unirradiated virtual colloid lacks curing reaction, has smaller colloid hardness and is easy to be compressed. After the box body 100 is taken out of the vacuum box aligning machine, the surfaces of the color film substrate and the array substrate are extruded due to the atmospheric pressure, so that the virtual colloid is deformed. FIG. 2 is a schematic diagram of the deformation of a virtual placement gel. Because the hardness of the virtual colloid at each position is different, the deformation amount of the virtual colloid with different hardness is different, and the colloid height of the virtual colloid at the periphery of the box body is different. As shown in fig. 2, the cured dummy colloids 21 have a large hardness, are not easily compressed, and have a small deformation amount due to the curing reaction, so that the height of the cured dummy colloids 21 is large. The uncured virtual colloid 22 has a small hardness, is easy to compress, and has a large deformation amount due to lack of curing reaction, so that the adhesive height of the uncured virtual colloid 22 is small. The glue height difference of the virtual colloid is preserved in the subsequent ultraviolet curing and thermal curing processes. Fig. 3 is a schematic diagram of deformation of the primary colloid and the dummy colloid. As shown in fig. 3, since part of the dummy colloids 20 is already cured, and the main colloids 10 are not cured, the physical properties, hardness, and deformation of the main colloids 10 and the dummy colloids 20 are different, and thus the glue height of the main colloids 10 is different from the glue height of the dummy colloids 20 under the action of atmospheric pressure. The difference in the glue height between the main colloid 10 and the dummy colloid 20 is maintained during the subsequent uv curing and thermal curing processes. Because the glue heights of the virtual colloid at each position are different, the glue heights of the main colloid and the virtual colloid are different, so that the liquid crystal box thicknesses (CG for short) in all the areas around the box body are different, the light path difference of backlight in the areas is different, the macroscopic difference shows the color difference, namely the phenomenon of yellowing, and the phenomenon of yellowing of a large-size display panel is particularly serious. After the virtual colloid is pre-cured, although the glue height inconsistency of the virtual colloid can be reduced to a certain extent by standing for 20 to 30 minutes and the like, and the glue height inconsistency of the main colloid and the virtual colloid can be relieved to a certain extent, the production efficiency and the productivity are seriously influenced and the yellowing phenomenon cannot be completely eliminated because the required production Tact Time (TT) is too long.
In order to overcome the defects of yellowing of the periphery and the like of the conventional display panel, the exemplary embodiment of the present disclosure provides a method for manufacturing a display panel. Fig. 4 is a flowchart of a method of manufacturing a display panel according to an exemplary embodiment of the present disclosure. As shown in fig. 4, in an exemplary embodiment, a method of manufacturing a display panel may include:
s1, providing a first substrate and a second substrate, wherein liquid crystal is dripped on the first substrate, and frame sealing glue is coated on the second substrate; the frame sealing glue comprises a main glue body and a virtual glue body;
s2, aligning and attaching the first substrate and the second substrate in a vacuum box aligning machine to form a box body, taking out the box body from the vacuum box aligning machine, wherein the main colloid and the virtual colloid in the box body are not subjected to pre-curing treatment;
and S3, maintaining the posture of the box body, and simultaneously carrying out ultraviolet curing treatment on the main colloid and the virtual colloid.
In an exemplary embodiment, the first substrate may be an array substrate, the second substrate may be a color film substrate, liquid crystal is dropped on the array substrate, and the color film substrate is coated with a frame sealing adhesive.
In an exemplary embodiment, the first substrate may be a color film substrate, the second substrate may be an array substrate, liquid crystal is dropped on the color film substrate, and a frame sealing adhesive is coated on the array substrate.
In an exemplary embodiment, the dummy colloids are disposed at the periphery of the main colloids.
In an exemplary embodiment, step S2 may include:
s21, in a vacuum box aligning machine, an upper base station adsorbs the first substrate, one side of the first substrate, on which liquid crystal is dripped, faces downwards, a lower base station adsorbs the second substrate, and one side of the second substrate, on which frame sealing glue is coated, faces upwards;
s22, the upper base station drives the first substrate or the lower base station drives the second substrate to be aligned, the end part of the frame sealing glue on the second substrate is attached to the first substrate, and a box body of the first substrate above the second substrate is formed;
and S23, taking the box body out of the vacuum box aligning machine, wherein the main colloid and the virtual colloid in the box body are not subjected to pre-curing treatment.
In an exemplary embodiment, step S1 and step S2 may include: and turning the first substrate 180 degrees to enable the side of the first substrate on which the liquid crystal is dripped to face downwards.
In an exemplary embodiment, step S3 may include:
s31, keeping the posture of the box body with the first substrate above the second substrate, and sending the box body into ultraviolet curing equipment;
s32, in the ultraviolet curing equipment, ultraviolet light penetrates through the first substrate and simultaneously carries out ultraviolet curing treatment on the main colloid and the virtual colloid;
s33, taking the box body out of the ultraviolet curing equipment.
In an exemplary embodiment, step S3 may be followed by:
and S4, in a thermocuring device, thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time.
In an exemplary embodiment, step S4 may include:
s41, feeding the box body into thermocuring equipment;
s42, in a thermocuring device, thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time;
s43, taking the box body out of the thermosetting equipment.
The technical solution of this embodiment is further described below through a manufacturing process of a display panel, taking an array substrate as a first substrate and a color film substrate as a second substrate as an example.
(1) And preparing an array substrate and a color film substrate. In an exemplary embodiment, the array substrate and the color filter substrate may be prepared simultaneously, or the color filter substrate may be prepared first and then the array substrate is prepared, or the array substrate may be prepared first and then the color filter substrate is prepared, which is not limited in this disclosure.
In an exemplary embodiment, the array substrate may serve as a first substrate of the present disclosure, and the color filter substrate may serve as a second substrate of the present disclosure. The manufacturing of the array substrate may include forming a gate line, a data line, a thin film transistor, a pixel electrode, and the like on a substrate, and the manufacturing of the color filter substrate may include forming a black matrix, a color filter layer, a common electrode, and the like on a substrate, and the array substrate and the color filter substrate may include other layers, such as an alignment layer, and the like, which are known to those skilled in the art and are not limited herein.
(2) And dripping liquid crystal on the array substrate, and coating frame sealing glue on the color film substrate. In an exemplary embodiment, dropping liquid crystal and coating the sealant may be performed simultaneously, or the liquid crystal may be dropped on the array substrate first and then the sealant is coated on the color film substrate, or the sealant may be coated on the color film substrate first and then the liquid crystal is dropped on the array substrate, which is not limited herein.
Fig. 5 is a schematic diagram of a color film substrate coated with a frame sealing adhesive according to an exemplary embodiment of the disclosure. As shown in fig. 5, the color film substrate 2 includes a display region and a non-display region, the non-display region is located at the periphery of the display region, the sealant is disposed in the non-display region of the color film substrate 2, the sealant at least includes a main sealant 10 and a dummy sealant 20, the dummy sealant 20 is disposed at a side of the main sealant 10 away from the display region, that is, the dummy sealant 20 is disposed at an outer side of the main sealant 10, the main sealant 10 serves as a main sealant to ensure the sealing performance of the display panel, and the dummy sealant 20 serves as an auxiliary sealant to assist in the packaging process. In an exemplary embodiment, the frame sealing adhesive may include a ring-shaped sealant for auxiliary sealing, which is not limited herein.
(3) Before entering a vacuum box aligning machine, the array substrate is turned over by 180 degrees, so that the side of the array substrate on which the liquid crystal is dripped faces downwards. In a vacuum box aligning machine, the lower base station adsorbs the color film substrate, the upper base station adsorbs the array substrate, and the color film substrate and the array substrate are aligned and attached. Fig. 6 is a schematic view of alignment fitting according to an exemplary embodiment of the present disclosure. As shown in fig. 6, the array substrate 1 is adsorbed on the upper base 30, the side of the array substrate 1 on which the liquid crystal 11 is dropped faces the color filter substrate 2 (downward), the color filter substrate 2 is adsorbed on the lower base 40, and the side of the color filter substrate 2 on which the main colloid 10 and the dummy colloid 20 are coated faces the array substrate 1 (upward). The upper base station 30 drives the array substrate 1 or the lower base station 40 drives the color film substrate 2 to align, and the color film substrate 2 is pressed under a vacuum condition, so that the end parts, close to the array substrate 1, of the main colloid 10 and the virtual colloid 20 on the color film substrate 2 are attached to the array substrate 1, and a box body is formed. Different from the prior art, the array substrate 1 and the color film substrate 2 in the exemplary embodiment of the disclosure are not pre-cured by the virtual colloid after being attached in the vacuum box matching machine, that is, the ultraviolet point light source in the vacuum box matching machine is turned off, and the main colloid 10 and the virtual colloid 20 are both colloids without being cured.
In an exemplary embodiment, the vacuum cassette aligning machine is a device for exhausting air in a Chamber (Chamber) through a vacuum exhaust system, and then aligning and bonding the chambers, and is well known to those skilled in the art.
(4) And taking the box body out of the vacuum box aligning machine. Fig. 7 isbase:Sub>A schematic view ofbase:Sub>A rear case of the cartridge according to an exemplary embodiment of the present disclosure, fig. 8 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 7, and fig. 9 is an enlarged view ofbase:Sub>A region B in fig. 7. As shown in fig. 7, since the pre-curing of the dummy colloids 20 is not performed in the vacuum chamber-filling machine according to the exemplary embodiment of the present disclosure, the physical properties of the dummy colloids 20 at the respective positions are consistent, and the physical properties of the main colloids 10 and the dummy colloids 20 are consistent. After the box body is taken out of the vacuum box machine, the main colloid 10 and the virtual colloid 20 are deformed under the action of atmospheric pressure, the deformation amount of each position of the virtual colloid 20 is basically the same, the deformation amount of the main colloid 10 and the deformation amount of the virtual colloid 20 are basically the same, so that the glue height of each position of the virtual colloid 20 is basically the same, as shown in fig. 8, the glue height of the main colloid 10 is basically the same as that of the virtual colloid 20, and the box thickness of the periphery of the box body cannot be different, as shown in fig. 9.
(5) And (4) conveying the box body into ultraviolet curing equipment for ultraviolet curing. Fig. 10 is a schematic view of a cartridge for uv curing according to an exemplary embodiment of the present disclosure. As shown in fig. 10, the box body taken out of the vacuum box aligning machine is directly conveyed to the ultraviolet curing apparatus by the transmission of the robot arm, and the ultraviolet light transmits through the array substrate 1 to simultaneously perform ultraviolet curing on the main colloid 10 and the dummy colloid 20. Because the physical characteristics of the virtual colloid 20 at each position are consistent, and the physical characteristics of the main colloid 10 and the virtual colloid 20 are consistent, after the ultraviolet curing is finished, the shrinkage degree of each position of the virtual colloid 20 is basically the same, the glue height of each position of the virtual colloid 20 is basically the same, the shrinkage degree of the main colloid 10 and the shrinkage degree of the virtual colloid 20 are basically the same, the glue height of the main colloid 10 is basically the same as the glue height of the virtual colloid 20, and the box thickness around the box body cannot be different.
Different from the existing process, in the manufacturing process of the exemplary embodiment of the present disclosure, the box body is not turned over during the process of taking out the box body from the vacuum box aligning machine to feeding the box body into the ultraviolet curing equipment, that is, the box body always keeps the posture of the box body that the array substrate is located above the color film substrate. Because the array substrate 1 is positioned above the box body after box alignment, and the color film substrate 2 is positioned below the box body, the box body does not need to be turned over by 180 degrees in the process of taking out the box body from the vacuum box alignment machine and sending the box body into the ultraviolet curing equipment. Although the virtual placement colloid is not pre-cured in the disclosure, the adhesive capacity between the frame sealing adhesive and the array substrate 1 and the color film substrate 2 is not strong, because the box body is not turned over, the array substrate 1 and the color film substrate 2 which are oppositely arranged cannot be dislocated, and the positions of the main colloid 10 and the virtual placement colloid 20 between the array substrate 1 and the color film substrate 2 cannot be shifted, so that the alignment precision of the array substrate 1 and the color film substrate 2 can be ensured.
(6) And feeding the box body into a thermosetting device for thermosetting. After the ultraviolet curing, the box body enters a thermosetting device to simultaneously thermally cure the main colloid 10 and the dummy colloid 20. Because the physical properties of the virtual colloid 20 at each position are the same, and the physical properties of the main colloid 10 and the virtual colloid 20 are the same, after the thermal curing is finished, the shrinkage degree of each position of the virtual colloid 20 is basically the same, the glue height of each position of the virtual colloid 20 is basically the same, the shrinkage degree of the main colloid 10 and the shrinkage degree of the virtual colloid 20 are basically the same, the glue height of the main colloid 10 is basically the same as the glue height of the virtual colloid 20, and the box thickness at the periphery of the box body cannot be different.
According to the display panel prepared by the preparation process of the display panel disclosed by the exemplary embodiment of the disclosure, the same liquid crystal box thickness of each area around the display panel is ensured, and the defects of yellowing and the like around the display panel are effectively overcome. Compared with the existing preparation method for pre-curing, the pre-curing treatment of the virtual colloid is not performed when the box is subjected to the pre-curing treatment, so that the problem that the deformation of the frame sealing glue is different under the action of atmospheric pressure is fundamentally eliminated, when the box body is subjected to the action of atmospheric pressure subsequently, the deformation amount of each position of the virtual colloid is basically the same, and the deformation amount of the main colloid and the deformation amount of the virtual colloid are basically the same, so that the glue height of each position of the virtual colloid is basically the same, and the glue height of the main colloid and the glue height of the virtual colloid are basically the same. Compared with the existing preparation method for turning over the box body, the array substrate is located above the color film substrate and the color film substrate is located below the array substrate when the box is turned over in the exemplary embodiment of the disclosure, so that 180-degree turning over is not needed after the box is turned over, and the problem that the array substrate and the color film substrate slide relatively during turning over due to insufficient adhesive capacity of the frame sealing glue is effectively solved. Because the overturning process is not adopted, the offset cannot occur between the oppositely arranged array substrate and the color film substrate, and the positions of the main colloid and the virtual colloid between the array substrate and the color film substrate cannot be changed, so that the alignment precision of the array substrate and the color film substrate is ensured, the accuracy of pixel alignment in the display panel is ensured, and the poor light leakage in the display panel is ensured. Because the main colloid and the virtual colloid are subjected to ultraviolet curing treatment in the ultraviolet curing equipment at the same time, the glue height of each position of the virtual colloid is basically the same, and the glue height of the main colloid is basically the same as that of the virtual colloid, so that the uniform height of the frame sealing glue at the periphery of the box body is ensured, no deformation difference is ensured, the difference of the box thickness at the periphery of the box body is ensured to be smaller, the thicknesses of liquid crystal boxes at each area of the periphery of the display panel are ensured to be basically the same, the optical path difference of backlight in the areas is basically the same, and the defects of yellowing and the like at the periphery of a large-size display panel are effectively avoided.
The manufacturing method of the display panel in the exemplary embodiment of the disclosure can be implemented by using the existing process equipment, does not need to modify the existing process equipment, is strong in compatibility and simple in process, and is beneficial to reducing the production takt, improving the production efficiency and reducing the production cost.
In an exemplary embodiment, the sealant may be coated on the array substrate, the liquid crystal may be drop-coated on the color film substrate, the color film substrate is located above the array substrate when the pair of substrates are sealed, the array substrate is located below the color film substrate, the side of the color film substrate on which the liquid crystal is dropped faces downward, and the side of the array substrate on which the sealant is coated faces upward, or the pair of substrates may be sealed without 180 ° inversion.
The disclosed exemplary embodiment also provides a display panel, which is manufactured by the manufacturing method of the disclosed exemplary embodiment.
The display panel of the exemplary embodiment of the present disclosure may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Although the embodiments disclosed in the present disclosure are described above, the descriptions are only for the convenience of understanding the present disclosure, and are not intended to limit the present disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (5)
1. A method for manufacturing a display panel, comprising:
providing a first substrate and a second substrate, wherein liquid crystal is dripped on the first substrate, and frame sealing glue is coated on the second substrate; the frame sealing glue comprises a main glue body and a virtual glue body;
before entering a vacuum box aligning machine, turning the first substrate for 180 degrees to enable one side of the first substrate on which liquid crystal is dripped to face downwards;
aligning and laminating the first substrate and the second substrate in a vacuum box aligning machine to form a box body, wherein the main colloid and the virtual colloid in the box body are both colloid which is not subjected to pre-curing treatment, and the physical properties of the main colloid and the virtual colloid are consistent; will in the vacuum box machine of will first base plate and second base plate counterpoint laminating form the box body, include: in a vacuum box aligning machine, an upper base station adsorbs the first substrate, one side of the first substrate on which liquid crystal is dripped faces downwards, a lower base station adsorbs the second substrate, and one side of the second substrate coated with frame sealing glue faces upwards; the upper base station drives the first substrate or the lower base station drives the second substrate to align, and the end part of the frame sealing glue on the second substrate is attached to the first substrate to form a box body of the first substrate above the second substrate;
taking the box body out of the vacuum box aligning machine, wherein the main colloid and the virtual colloid are simultaneously deformed under the action of atmospheric pressure, the glue height of the main colloid is the same as that of the virtual colloid, and the box thickness of the periphery of the box body is not different;
keep the gesture of box body, carry out ultraviolet curing simultaneously to main colloid and virtual colloid put, include: keeping the posture of the box body of the first substrate above the second substrate, and sending the box body into ultraviolet curing equipment, namely, the box body is not turned over in the process of taking the box body out of a vacuum box aligning machine and sending the box body into the ultraviolet curing equipment, and the box body keeps the posture of the box body of the array substrate above a color film substrate all the time, so that dislocation between the first substrate and the second substrate which are oppositely arranged cannot occur, the positions of the main colloid and the virtual colloid cannot be shifted, and the alignment precision of the first substrate and the second substrate is ensured; in the ultraviolet curing equipment, ultraviolet light penetrates through the first substrate and simultaneously carries out ultraviolet curing treatment on the main colloid and the virtual colloid; after ultraviolet curing is finished, the shrinkage degree of each position of the virtual colloid is the same, the glue height of each position of the virtual colloid is the same, the shrinkage degree of the main colloid is the same as that of the virtual colloid, the glue height of the main colloid is the same as that of the virtual colloid, and the box thickness of the periphery of the box body has no difference; taking the box body out of the ultraviolet curing equipment;
in the thermocuring equipment, the thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time, and the thermocuring treatment comprises the following steps: feeding the box body into a thermosetting device; in a thermocuring device, thermocuring treatment is carried out on the main colloid and the virtual colloid at the same time; after the thermal solidification is finished, the shrinkage degree of each position of the virtual colloid is the same, the glue height of each position of the virtual colloid is basically the same, the shrinkage degree of the main colloid is the same as that of the virtual colloid, the glue height of the main colloid is the same as that of the virtual colloid, and the box thickness of the periphery of the box body has no difference; and taking the box body out of the heat curing device.
2. The method according to claim 1, wherein the first substrate comprises an array substrate, and the second substrate comprises a color filter substrate.
3. The method according to claim 1, wherein the first substrate comprises a color filter substrate, and the second substrate comprises an array substrate.
4. The method according to claim 1, wherein the dummy colloids are disposed at the periphery of the main colloids.
5. A display panel produced by the production method according to any one of claims 1 to 4.
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| JP3658604B2 (en) * | 1995-10-27 | 2005-06-08 | 富士通ディスプレイテクノロジーズ株式会社 | Manufacturing method of liquid crystal panel |
| KR100710163B1 (en) * | 2002-11-28 | 2007-04-20 | 엘지.필립스 엘시디 주식회사 | method for manufacturing of LCD |
| CN100587572C (en) * | 2007-06-08 | 2010-02-03 | 北京京东方光电科技有限公司 | A kind of panel of LCD |
| CN101957512A (en) * | 2009-07-16 | 2011-01-26 | 北京京东方光电科技有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN102073170A (en) * | 2010-11-18 | 2011-05-25 | 深圳市华星光电技术有限公司 | Curing device and display panel assembly equipment thereof |
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